output
19912026
most citedAdvances in Quantum Metrology

3.9k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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Showing 2014 · quant-phShow all

17 papers · 2 filters

quant-ph2014★ 23 cited

Classical dynamical localization

Italo Guarneri, Giulio Casati, Volker Karle

We consider classical models of the kicked rotor type, with piecewise linear kicking potentials designed so that momentum changes only by multiples of a given constant. Their dynam…

quant-ph2014★ 16 cited

Discrete Feynman propagator for the Weyl quantum walk in 2+1 dimensions

G. M. D'Ariano, N. Mosco, P. Perinotti +1

Recently quantum walks have been considered as a possible fundamental description of the dynamics of relativistic quantum fields. Within this scenario we derive the analytical solu…

quant-ph2014★ 8 cited

Symmetric angular momentum coupling, the quantum volume operator and the 7-spin network: a computational perspective

Dimitri Marinelli, Annalisa Marzuoli, Vincenzo Aquilanti +3

A unified vision of the symmetric coupling of angular momenta and of the quantum mechanical volume operator is illustrated. The focus is on the quantum mechanical angular momentum…

quant-ph2014★ 177 cited

Quasi-quantization: classical statistical theories with an epistemic restriction

Robert W. Spekkens

A significant part of quantum theory can be obtained from a single innovation relative to classical theories, namely, that there is a fundamental restriction on the sorts of statis…

quant-ph2014★ 53 cited

Complementarity and correlations

Lorenzo Maccone, Dagmar Bruss, Chiara Macchiavello

We provide an interpretation of entanglement based on classical correlations between measurement outcomes of complementary properties: states that have correlations beyond a certai…

quant-ph2014★ 37 cited

Quantum Cellular Automaton Theory of Light

Alessandro Bisio, Giacomo Mauro D'Ariano, Paolo Perinotti

We present a quantum theory of light based on quantum cellular automata (QCA). This approach allows us to have a thorough quantum theory of free electrodynamics encompassing an hyp…

quant-ph2014★ 380 cited

Using entanglement against noise in quantum metrology

Rafal Demkowicz-Dobrzanski, Lorenzo Maccone

We analyze the role of entanglement among probes and with external ancillas in quantum metrology. In the absence of noise, it is known that unentangled sequential strategies can ac…

quant-ph2014★ 290 cited

Stronger uncertainty relations for the sum of variances

Lorenzo Maccone, Arun K. Pati

Heisenberg-Robertson's uncertainty relation expresses a limitation in the possible preparations of the system by giving a lower bound to the product of the variances of two observa…

quant-ph2014★ 4 cited

Where do bosons actually belong?

A Marzuoli, F A Raffa, M Rasetti

We explore a variety of reasons for considering su(1,1) instead of the customary h(1) as the natural unifying frame for characterizing boson systems. Resorting to the Lie-Hopf stru…

quant-ph2014★ 18 cited

Path-integral solution of the one-dimensional Dirac quantum cellular automaton

Giacomo Mauro D'Ariano, Nicola Mosco, Paolo Perinotti +1

Quantum cellular automata have been recently considered as a fundamental approach to quantum field theory, resorting to a precise automaton, linear in the field, for the Dirac equa…

quant-ph2014★ 4 cited

Witnessing entanglement in hybrid systems

Massimo Borrelli, Matteo Rossi, Chiara Macchiavello +1

We extend the definition of entanglement witnesses based on structure factors to the case in which the position of the scatterers is quantized. This allows us to study entanglement…

quant-ph2014★ 20 cited

The Screen representation of spin networks: 2D recurrence, eigenvalue equation for 6j symbols, geometric interpretation and Hamiltonian dynamics

Roger W. Anderson, Vincenzo Aquilanti, Ana Carla P. Bitencourt +2

This paper treats 6j symbols or their orthonormal forms as a function of two variables spanning a square manifold which we call the "screen". We show that this approach gives impor…

quant-ph2014★ 14 cited

Hypergraph states in Grover's quantum search algorithm

M. Rossi, D. Bruß, C. Macchiavello

We study the entanglement content of the states employed in the Grover algorithm after the first oracle call when a few searched items are concerned. We then construct a link betwe…

quant-ph2014★ 68 cited

Entanglement and nonclassical properties of hypergraph states

O. Gühne, M. Cuquet, F. E. S. Steinhoff +5

Hypergraph states are multi-qubit states that form a subset of the locally maximally entangleable states and a generalization of the well--established notion of graph states. Mathe…

quant-ph2014★ 17 cited

Randomized Graph States and their Entanglement Properties

Jun-Yi Wu, Matteo Rossi, Hermann Kampermann +4

We introduce a class of mixed multiqubit states, that corresponds to a randomized version of graph states. Such states arise when a graph state is prepared with noisy or imperfect…

quant-ph2014★ 52 cited

The Feynman problem and Fermionic entanglement: Fermionic theory versus qubit theory

Giacomo Mauro D'Ariano, Franco Manessi, Paolo Perinotti +1

The present paper is both a review on the Feynman problem, and an original research presentation on the relations between Fermionic theories and qubits theories, both regarded in t…

quant-ph2014★ 5 cited

Symmetric coupling of angular momenta, quadratic algebras and discrete polynomials

V. Aquilanti, D. Marinelli, A. Marzuoli

Eigenvalues and eigenfunctions of the volume operator, associated with the symmetric coupling of three SU(2) angular momentum operators, can be analyzed on the basis of a discrete…